/Engine/Source/Runtime/Core/Public/Templates/SharedPointer.h
Assignment operator replaces this shared pointer with the specified shared pointer. The object currently referenced by this shared pointer will no longer be referenced and will be deleted if there are no other referencers.
template<typename OtherType, typename DeleterType, typename> [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr) & operator= ( [SharedPointerInternals::TRawPtrProxyWithDeleter](API\Runtime\Core\Templates\TRawPtrProxyWithDeleter)< OtherType, DeleterType > && InRawPtrProxy )